Finding the Fourth Proportional to 52,942.10, 79,415.30 and 13,500.23

Step by Step Solution

1. Step 1: Write the proportion equation
   52,942.10 : 79,415.30 = 13,500.23 : x
2. Step 2: Convert to fraction form
   52,942.10/79,415.30 = 13,500.23/x
3. Step 3: Cross multiply
   52,942.10x = 79,415.30 × 13,500.23
4. Step 4: Simplify right side
   52,942.10x = 1,072,124,815.52
5. Step 5: Solve for x
   x = 1,072,124,815.52/52,942.10
6. Step 6: Final answer
   x = 20,250.90